// Copyright (C) 2014-2018 Goodrain Co., Ltd.
// RAINBOND, Application Management Platform

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version. For any non-GPL usage of Rainbond,
// one or multiple Commercial Licenses authorized by Goodrain Co., Ltd.
// must be obtained first.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.

package cmd
import (
	"github.com/urfave/cli"
	"github.com/goodrain/rainbond/pkg/grctl/clients"
	"fmt"
	"github.com/apcera/termtables"
	"github.com/Sirupsen/logrus"
)
func NewCmdTenant() cli.Command {
	c:=cli.Command{
		Name: "tenant",
		Usage: "获取租户应用（包括未运行）信息。 grctl tenant -h",
		Subcommands:[]cli.Command{
			cli.Command{
				Name: "get",
				Usage: "获取应用运行详细信息。grctl tenant get TENANT_NAME",
				Action: func(c *cli.Context) error {
					Common(c)
					return getTenantInfo(c)
				},
			},
			cli.Command{
				Name:  "res",
				Usage: "获取租户占用资源信息。 grctl tenant res TENANT_NAME",
				Action: func(c *cli.Context) error {
					Common(c)
					return findTenantResourceUsage(c)
				},
			},
			cli.Command{
				Name:  "batchstop",
				Usage: "批量停止租户应用。grctl tenant batchstop tenant_name",
				Flags: []cli.Flag{
					cli.BoolFlag{
						Name:  "f",
						Usage: "添加此参数日志持续输出。",
					},
					cli.StringFlag{
						Name:  "event_log_server",
						Usage: "event log server address",
					},
				},
				Action: func(c *cli.Context) error {
					Common(c)
					return stopTenantService(c)
				},
			},
		},
	}
	return c
}


// grctrl tenant TENANT_NAME
func getTenantInfo(c *cli.Context) error {
	tenantID := c.Args().First()

	services,err:=clients.RegionClient.Tenants().Get(tenantID).Services().List()
	handleErr(err)
	if services !=nil{
		table := termtables.CreateTable()
		table.AddHeaders("租户ID", "服务ID", "服务别名", "应用状态", "Deploy版本")
		for _, service := range services {
			table.AddRow(service.TenantID, service.ServiceID, service.ServiceAlias, service.CurStatus, service.DeployVersion)
		}
		fmt.Println(table.Render())
		return nil
	}else {
		logrus.Error("get nothing")
		return nil
	}

}
func findTenantResourceUsage(c *cli.Context) error  {
	tenantID := c.Args().First()
	services,err:=clients.RegionClient.Tenants().Get(tenantID).Services().List()
	handleErr(err)
	var cpuUsage float32 =0
	var cpuUnit float32=1000
	var memoryUsage int64=0
	for _,service:=range services{
		cpuUsage+=float32(service.ContainerCPU)
		memoryUsage+=int64(service.ContainerMemory)
	}
	fmt.Printf("租户 %s 占用CPU : %v 核; 占用Memory : %d M",tenantID, cpuUsage/cpuUnit,memoryUsage)
	fmt.Println()
	return nil
}